Teresina weather in October

In October, Teresina sees average daytime highs of 37°C and overnight lows near 25°C, with 15 mm of rain across 2 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 37°C through the month. The sky is clear or mostly clear about 59% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 hours at the start of October to 12 h 12 min by month's end. Set against the rest of the year, October is Teresina's 4th-clearest and 4th-windiest month. For the whole year in context, see Teresina's year-round climate.

Daytime high
37°
1st warmest
Overnight low
25°
11th coldest
Rainfall
15 mm
2 wet days
Daylight
12 h 06 min
5:33 AM – 5:40 PM
Cloud cover
41%
4th clearest
Wind
8 km/h
4th windiest
Solar energy
6.65 kWh/m²
Travel score
2.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 37°C through the month.

A typical October day in Teresina reaches about 37°C in the afternoon and slips back to 25°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 38°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13725
23725
33725
43725
53725
63725
73725
83725
93725
103725
113725
123725
133725
143725
153725
163725
173725
183725
193725
203725
213725
223725
233725
243725
253725
263725
273725
283725
293725
303625
313625

How October really feels in Teresina

Once humidity and wind are folded in, October averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Teresina weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°23522.512.32.7
Feb32° / 23°28122.612.22.7
Mar31° / 23°32826.9122.6
Apr31° / 23°26423.311.92.9
May32° / 23°12412.811.83.8
Jun33° / 23°162.911.74.3
Jul33° / 23°91.611.74.1
Aug35° / 24°20.511.83.3
Sep36° / 24°30.9122.4
Oct37° / 25°15212.12.0
Nov36° / 25°415.812.22.2
Dec34° / 24°9311.312.32.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 21% of October, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18911
28812
38713
48614
58614
68614
78515
88515
98416
108416
118317
128317
138218
148218
158218
168218
178119
188119
197921
207921
217822
227723
237624
247525
257426
267327
277228
287030
297030
306931
316733

Chance of precipitation in October

Any precipitation

Teresina gets around 15 mm of rain over 2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 11% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
64
74
84
95
105
115
126
136
146
157
167
177
187
198
208
219
229
239
249
259
2610
2710
2810
2910
3011
3111

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the muggy band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 79% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12226610
22226610
32226610
42226610
52226610
62226610
72226511
83226411
93226411
103226312
113226312
123226213
133226213
143226114
153216115
163216115
173206116
182206117
192196118
202186218
212176219
222176120
232166121
242156122
252156023
262146123
272146024
281136125
291136125
301126126
311126027

Wind in October

Winds average 8 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 hours at the start of October to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over October. Sunrise moves from 5:39 AM to 5:29 AM, and sunset from 5:42 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:395:42
212.05:385:41
312.15:385:41
412.15:375:41
512.15:375:41
612.15:375:41
712.15:365:41
812.15:365:40
912.15:355:40
1012.15:355:40
1112.15:355:40
1212.15:345:40
1312.15:345:40
1412.15:335:40
1512.15:335:40
1612.15:335:40
1712.15:335:40
1812.15:325:40
1912.15:325:40
2012.15:325:40
2112.15:315:40
2212.15:315:40
2312.15:315:40
2412.15:315:40
2512.25:305:40
2612.25:305:40
2712.25:305:40
2812.25:305:40
2912.25:305:40
3012.25:305:40
3112.25:295:40

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.65 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.77 kWh/m² to a high of 6.65 kWh/m² in October across the year — October's 6.65 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in October

Hazard calendar for Teresina

In seasonPeak

None of Teresina's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Teresina's monsoon runs January–April, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Teresina?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.0
Sightseeing
12th-best month of the year
5.3
Beach & pool
7th-best month of the year

October is a weaker month for outdoor sightseeing in Teresina.

What to pack for Teresina in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Teresina sees daytime highs around 37°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Teresina in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Teresina peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Aug 10UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Teresina in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Teresina is worst in October — around 35 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (June, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1633 µg/m³Jun 199 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun8Good
Jul10Good
Aug16Moderate
Sep25Moderate
Oct35Moderate
Nov23Moderate
Dec17Moderate
Location & terrain

Where is Teresina?

Teresina sits at 5.1°S, 42.8°W, 87 m above sea level, in Brazil. The nearest listed city is Timon, 4.0 km away.

Topography around Teresina

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Teresina.

Within 3 km, the terrain around Teresina has only modest variations in elevation — a maximum elevation change of 56 m around an average of 74 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 147 m; within 80 km, significant variations in elevation — a maximum elevation change of 382 m.

The land around Teresina is covered by artificial surfaces (76%) within 3 km, trees (43%) within 16 km, and trees (58%) and shrubs (20%) within 80 km.

3 km
56 m
16 km
147 m
80 km
382 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Timon 4.0 km · Demerval Lobão 33 km · Altos 38 km · José de Freitas 45 km · União 56 km · Matões 65 km · Caxias 67 km · Parnarama 73 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Teresina (-5.0892°, -42.8019°, elevation 87 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).